To switch the physical port , you need to speak directly to the monitor. Since 2007, almost every monitor has supported a ghost in the machine called DDC/CI (Display Data Channel/Command Interface). It allows software to tell your monitor, "Hey, switch to HDMI 2."
There has to be a better way. And there is. how to switch monitors with keyboard
Actually, buy a (or the free software "Deckboard" on an old Android phone). Create a button that executes a command line script. It’s overkill. It’s beautiful. The Ultimate Cheat Sheet (DDC/CI Codes) If you use ControlMyMonitor , you don't even need to remember which button does what. Run this command in CMD: To switch the physical port , you need